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Effect of prestress on the stability of electrode–electrolyte interfaces during charging in lithium batteries

Natsiavas, P. P. and Weinberg, K. and Rosato, D. and Ortiz, M. (2016) Effect of prestress on the stability of electrode–electrolyte interfaces during charging in lithium batteries. Journal of the Mechanics and Physics of Solids, 95 . pp. 92-111. ISSN 0022-5096. doi:10.1016/j.jmps.2016.05.007.

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We formulate a model of the growth of electrode–electrolyte interfaces in lithium batteries in the presence of an elastic prestress. The model accounts for the kinetics of Li+ transport through a solid electrolyte and, within the interface, for the kinetics of Li^+ adsorption by the anode, electrostatics, and the elastic field. We specifically account for the effect of the elastic field through an asymptotic analysis of a nearly flat interface between two semi-infinite elastic bodies. We use the model as a basis for assessing the effect of prestress on the stability of planar growth and the potential of prestress as a means of suppressing the formation of deleterious dendrites. We present a linear stability analysis that results in explicit analytical expressions for the dependence of growth rates, and of the critical unstable wavelength for the interfacial roughening, on the state of prestress and on fundamental parameters such as surface diffusivities, surface energy, deposition kinetics, and elastic moduli. Finally, we examine the model in the light of experimental observations concerned with the effect of applied pressure on a lithium/dioxolane-dimethoxy ethane electrolyte systems. With reasonable choices of parameters and some calibration, the model accounts for the observation that a modest applied pressure indeed results in a substantial reduction in the roughening of the lithium surface during cycling.

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Ortiz, M.0000-0001-5877-4824
Additional Information:© 2016 Elsevier Ltd. Received 10 January 2016, Revised 8 May 2016, Accepted 8 May 2016, Available online 18 May 2016. We gratefully acknowledge support from Robert Bosch GmbH through the Bosch Energy Research Network (BERN) Project no.: 07-15-CS13 and from the U.S. National Science Foundation through the Partnership for International Research and Education (PIRE) on Science at the Triple Point Between Mathematics, Mechanics and Materials Science, Award number 0967140. We are indebted to Dr. Thomas Eckl, Dr. Felix Hildebrand and Dr. Ulrich Sauter, of Computational Materials Engineering, Renningen, Robert Bosch GmbH, 70465 Stuttgart, Germany, and to Dr. Boris Kozinsky, Research and Technology Center North America, Robert Bosch LLC, Cambridge, Massachusetts 02140, USA, for extended discussions and guidance.
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Bosch Energy Research Network (BERN)07-15-CS13
Record Number:CaltechAUTHORS:20160620-075212141
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Official Citation:P.P. Natsiavas, K. Weinberg, D. Rosato, M. Ortiz, Effect of prestress on the stability of electrode–electrolyte interfaces during charging in lithium batteries, Journal of the Mechanics and Physics of Solids, Volume 95, October 2016, Pages 92-111, ISSN 0022-5096, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:68506
Deposited By: Ruth Sustaita
Deposited On:20 Jun 2016 19:08
Last Modified:11 Nov 2021 04:00

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